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More Efficient Coal Flotation in Salt Solution: Physicochemical Aspects

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Abstract

The action of inorganic reagents in coal flotation is analyzed, with a view to improving enrichment. Sulfates of calcium, magnesium, and iron most likely act by diminishing the hydration of coal particles as a result of the surface adsorption of cations. The positive influence of a natural salt solution consisting primarily of NaCl on coal flotation is analyzed: increased frothing in the presence of NaCl electrolyte is due to change in the physicochemical properties of the adsorbed layers, with the formation of heteropolar reagents at the liquid–air interface.

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  1. Technological Institute, State University of Economics and Technology, Krivoi Rog, Ukraine

    V. P. Sokolova

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  1. V. P. Sokolova
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Translated by B. Gilbert

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Sokolova, V.P. More Efficient Coal Flotation in Salt Solution: Physicochemical Aspects. Coke Chem. 64, 471–474 (2021). https://doi.org/10.3103/S1068364X21100057

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  • DOI: https://doi.org/10.3103/S1068364X21100057

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